Apache Avro
arrow-rs
Apache Avro | arrow-rs | |
---|---|---|
22 | 16 | |
2,768 | 2,198 | |
0.9% | 3.4% | |
9.7 | 9.8 | |
7 days ago | 3 days ago | |
Java | Rust | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Apache Avro
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Open Table Formats Such as Apache Iceberg Are Inevitable for Analytical Data
Apache AVRO [1] is one but it has been largely replaced by Parquet [2] which is a hybrid row/columnar format
[1] https://avro.apache.org/
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Generating Avro Schemas from Go types
The most common format for describing schema in this scenario is Apache Avro.
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How do you update an existing avro schema using apache avro SchemaBuilder?
I am testing a new schema registry which loads and retrieves different kinds of avro schemas. In the process of testing, I need to create a bunch of different types of avro schemas. As it involves a lot of permutations, I decided to create the schema programmatically.I am using the apache avro SchemaBuilder to do so.
- The state of Apache Avro in Rust
- How people generate examples for multiple programming languages?
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gRPC on the client side
Other serialization alternatives have a schema validation option: e.g., Avro, Kryo and Protocol Buffers. Interestingly enough, gRPC uses Protobuf to offer RPC across distributed components:
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Understanding Azure Event Hubs Capture
Apache Avro is a data serialization system, for more information visit Apache Avro
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tl;dr of Data Contracts
Once things like JSON became more popular Apache Avro appeared. You can define Avro files which can then be generated into Python, Java C, Ruby, etc.. classes.
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In One Minute : Hadoop
Avro, a data serialization system based on JSON schemas.
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Events: Fat or Thin?
Supporting multiple versions of an event schema is a solved problem. Apache Avro with a published schema hash in a message header is one solution.
https://avro.apache.org/
arrow-rs
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Rkyv: Rkyv zero-copy deserialization framework for rust
https://github.com/djkoloski/rust_serialization_benchmark
Apache/arrow-rs: https://github.com/apache/arrow-rs
From https://arrow.apache.org/faq/ :
> How does Arrow relate to Flatbuffers?
> Flatbuffers is a low-level building block for binary data serialization. It is not adapted to the representation of large, structured, homogenous data, and does not sit at the right abstraction layer for data analysis tasks.
> Arrow is a data layer aimed directly at the needs of data analysis, providing a comprehensive collection of data types required to analytics, built-in support for “null” values (representing missing data), and an expanding toolbox of I/O and computing facilities.
> The Arrow file format does use Flatbuffers under the hood to serialize schemas and other metadata needed to implement the Arrow binary IPC protocol, but the Arrow data format uses its own representation for optimal access and computation
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Polars: Company Formation Announcement
One of the interesting components of Polars that I've been watching is the use of the Apache Arrow memory format, which is a standard layout for data in memory that enables processing (querying, iterating, calculating, etc) in a language agnostic way, in particular without having to copy/convert it into the local object format first. This enables cross-language data access by mmaping or transferring a single buffer, with zero [de]serialization overhead.
For some history, there's has been a bit of contention between the official arrow-rs implementation and the arrow2 implementation created by the polars team which includes some extra features that they find important. I think the current status is that everyone agrees that having two crates that implement the same standard is not ideal, and they are working to port any necessary features to the arrow-rs crate and plan on eventually switching to it and deprecating arrow2. But that's not easy.
https://github.com/apache/arrow-rs/issues/1176
https://github.com/jorgecarleitao/arrow2/pull/1476
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InfluxDB 3.0 System Architecture
It's built around the arrow-rs library, which we've contributed to significantly: https://github.com/apache/arrow-rs
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best cache type for 5gb size tables
For loading Parquet in memory, probably worth a look at arrow-rs.
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The state of Apache Avro in Rust
From what I've seen, most of the Rust community seems to be adopting Apache Arrow as the go-to for data processing. It has strong community support and good interoperability with many cross-language tools. It is natively a columnar format. If row-oriented is a must for your use case, consider looking into alternatives like gRPC that might better suit your needs.
- Arrow-Rs - Official Rust implementation of Apache Arrow
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Apache Arrow Feature Parity Timeline?
That matrix doesn't seem up to date. For example looking at the rust crate it does seem to support things like map, float16, and IPC. The changelog shows an impressive development pace.
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Apache Arrow Flight SQL: Accelerating Database Access
Oh, and for anyone interested in pitching in on the Rust implementation, there's an issue logged here along with some discussion: https://github.com/apache/arrow-rs/issues/1323
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February 2022 Rust Apache Arrow and Parquet Highlights
There is more discussion about the decision here: https://github.com/apache/arrow-rs/issues/1120
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Arrow2 0.9 has been released
I'm still not sure how this differs from https://github.com/apache/arrow-rs. What does transmute even mean?
What are some alternatives?
Protobuf - Protocol Buffers - Google's data interchange format
polars - Dataframes powered by a multithreaded, vectorized query engine, written in Rust
SBE - Simple Binary Encoding (SBE) - High Performance Message Codec
Apache Arrow - Apache Arrow is a multi-language toolbox for accelerated data interchange and in-memory processing
Apache Thrift - Apache Thrift
arrow2 - Transmute-free Rust library to work with the Arrow format
iceberg - Apache Iceberg
datafusion - Apache DataFusion SQL Query Engine
Apache Parquet - Apache Parquet
byo-sql - An in-memory SQL database in Rust.
gRPC - The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
db-benchmark - reproducible benchmark of database-like ops